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Aspects of metal and silicon-based n...

Elechiguerra Joven, Jose Luis.

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Aspects of metal and silicon-based nanomaterials: Synthesis, stability and properties.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Aspects of metal and silicon-based nanomaterials: Synthesis, stability and properties./
Author:	Elechiguerra Joven, Jose Luis.
Description:	285 p.
Notes:	Adviser: Miguel Jose Yacaman.
Contained By:	Dissertation Abstracts International67-06B.
Subject:	Chemistry, Inorganic. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3222998
ISBN:	9780542732829

Aspects of metal and silicon-based nanomaterials: Synthesis, stability and properties.
Elechiguerra Joven, Jose Luis.

Aspects of metal and silicon-based nanomaterials: Synthesis, stability and properties. - 285 p.

Adviser: Miguel Jose Yacaman.

Thesis (Ph.D.)--The University of Texas at Austin, 2006.

Metal and Si-based nanostructures have drawn increasing interest due to their potential uses in catalysis, biological sensors, and nanoelectronics among others. Therefore, in the present work, several nanostructures were produced, characterized and tested. In particular, the conventional synthesis of noble-metal nanostructures through the polyol method was modified by replacing poly-vinyl pyrrolidone PVP with poly-diallyl dimethyl ammonium chloride PDDA. As PDDA is a cationic polyelectrolyte, the initial strong electrostatic interaction between PDDA and the anionic metal precursors produce the formation of stable ion pairs, so the reactivity of the different species can be tailored and particles with different internal structure, i.e. crystallinity, can be produced.

ISBN: 9780542732829Subjects--Topical Terms:

517253
Chemistry, Inorganic.

Aspects of metal and silicon-based nanomaterials: Synthesis, stability and properties.
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005 20110928
008 110928s2006 eng d
020 $a 9780542732829
035 $a (UMI)AAI3222998
035 $a AAI3222998
040 $a UMI $c UMI
100 1 $a Elechiguerra Joven, Jose Luis. $3 1297292
245 1 0 $a Aspects of metal and silicon-based nanomaterials: Synthesis, stability and properties.
300 $a 285 p.
500 $a Adviser: Miguel Jose Yacaman.
500 $a Source: Dissertation Abstracts International, Volume: 67-06, Section: B, page: 3280.
502 $a Thesis (Ph.D.)--The University of Texas at Austin, 2006.
520 $a Metal and Si-based nanostructures have drawn increasing interest due to their potential uses in catalysis, biological sensors, and nanoelectronics among others. Therefore, in the present work, several nanostructures were produced, characterized and tested. In particular, the conventional synthesis of noble-metal nanostructures through the polyol method was modified by replacing poly-vinyl pyrrolidone PVP with poly-diallyl dimethyl ammonium chloride PDDA. As PDDA is a cationic polyelectrolyte, the initial strong electrostatic interaction between PDDA and the anionic metal precursors produce the formation of stable ion pairs, so the reactivity of the different species can be tailored and particles with different internal structure, i.e. crystallinity, can be produced.
520 $a Additionally, metal nanostructures such as nanoparticles and nanowires have been proposed as building blocks for several applications in nanofabrication and nanoelectronics. However, even when atmospheric corrosion is common in metals, there is a lack of information about the stability of those nanostructures against such phenomenon. So, the atmospheric corrosion of silver nanowires and nanoparticles synthesized by the polyol method using PVP as capping agent was studied.
520 $a Recently, five-fold twinned nanorods and nanowires of gold, copper and silver with pentagonal cross-sections have been synthesized by different techniques, including the polyol method. However, there is not a complete explanation of all the features presented in their electron diffraction patterns. Thus, a comprehensive study on the structure of these multi-twinned decahedral based nanorods and nanowires is presented.
520 $a Another important application of noble-metal nanostructures is in the field of biology. In the present work, it has been demonstrated that silver nanoparticles undergo a size dependent interaction with HIV-1 via preferential binding to the gp120 glycoprotein knobs. Due to this interaction, silver nanoparticles inhibit the virus from binding to host cells, as demonstrated in vitro.
520 $a In another topic, a simple approach technique for the production of silica nanowires, based on the vapor-liquid-solid (VLS) mechanism, is described. Finally, different materials were used as substrates for the nucleation of silver nanoparticles. The most distinctive case was mesoporous silica. Importantly, the existence of ultra-thin nanowires was observed. These nanowires (&sim;0.80 nm in diameter) are among the thinnest silver nanowires ever reported.
590 $a School code: 0227.
650 4 $a Chemistry, Inorganic. $3 517253
650 4 $a Engineering, Chemical. $3 1018531
650 4 $a Physics, Condensed Matter. $3 1018743
690 $a 0488
690 $a 0542
690 $a 0611
710 2 0 $a The University of Texas at Austin. $3 718984
773 0 $t Dissertation Abstracts International $g 67-06B.
790 $a 0227
790 1 0 $a Yacaman, Miguel Jose, $e advisor
791 $a Ph.D.
792 $a 2006
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3222998